Question 1/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(3x^2+10x+3=0\) के मूलों की प्रकृति क्या है?
What is the nature of roots of \(3x^2+10x+3=0\)?
#quadratic equations
#nature of roots
#discriminant
#distinct roots
A दो वास्तविक और असमान / two real and distinct
B दो वास्तविक और समान / two real and equal
C वास्तविक मूल नहीं / no real roots
D दोनों मूल (0) / both roots are (0)
Explanation opens after your attempt
Correct Answer
A. दो वास्तविक और असमान / two real and distinct
Step 1
Concept
(D=102 -4(3)(3)=64>0). Therefore the roots are real and distinct.
Step 2
Why this answer is correct
The correct answer is A. दो वास्तविक और असमान / two real and distinct. (D=102 -4(3)(3)=64>0). Therefore the roots are real and distinct.
Step 3
Exam Tip
(D=102 -4(3)(3)=64>0) है। इसलिए मूल वास्तविक और असमान हैं।
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Question 2/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(x^2-11x+30=0\) के लिए मूलों की प्रकृति क्या होगी?
What will be the nature of roots for \(x^2-11x+30=0\)?
#quadratic equations
#numerical
#distinct roots
A दो वास्तविक और असमान / two real and distinct
B दो वास्तविक और समान / two real and equal
C वास्तविक मूल नहीं / no real roots
D एक मूल शून्य / one root is zero
Explanation opens after your attempt
Correct Answer
A. दो वास्तविक और असमान / two real and distinct
Step 1
Concept
(D=(-11)2 -4(1)(30)=1>0). Therefore the roots will be real and distinct.
Step 2
Why this answer is correct
The correct answer is A. दो वास्तविक और असमान / two real and distinct. (D=(-11)2 -4(1)(30)=1>0). Therefore the roots will be real and distinct.
Step 3
Exam Tip
(D=(-11)2 -4(1)(30)=1>0) है। इसलिए मूल वास्तविक और असमान होंगे।
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Question 3/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(2x^2-7x+3=0\) के मूलों की प्रकृति क्या है?
What is the nature of roots of \(2x^2-7x+3=0\)?
#quadratic equations
#numerical
#distinct roots
A दो वास्तविक और असमान / two real and distinct
B दो वास्तविक और समान / two real and equal
C वास्तविक मूल नहीं / no real roots
D दोनों मूल ऋणात्मक और समान / both roots negative and equal
Explanation opens after your attempt
Correct Answer
A. दो वास्तविक और असमान / two real and distinct
Step 1
Concept
(D=(-7)2 -4(2)(3)=25>0). Hence the roots are real and distinct.
Step 2
Why this answer is correct
The correct answer is A. दो वास्तविक और असमान / two real and distinct. (D=(-7)2 -4(2)(3)=25>0). Hence the roots are real and distinct.
Step 3
Exam Tip
(D=(-7)2 -4(2)(3)=25>0) है। इसलिए मूल वास्तविक और असमान हैं।
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Question 4/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
यदि किसी द्विघात समीकरण के दो असमान वास्तविक मूल हैं, तो (D) कैसा होगा?
If a quadratic equation has two distinct real roots, how will (D) be?
#quadratic equations
#concept
#distinct roots
A (D>0)
B (D=0)
C (D<0)
D \(D\leq0\)
Explanation opens after your attempt
Step 1
Concept
For distinct real roots, (D>0). Do not add the equality sign by mistake.
Step 2
Why this answer is correct
The correct answer is A. (D>0). For distinct real roots, (D>0). Do not add the equality sign by mistake.
Step 3
Exam Tip
असमान वास्तविक मूलों के लिए (D>0) होता है। बराबर का चिन्ह गलती से न लगाएं।
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Question 5/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(4x^2-1=0\) के मूल कैसे होंगे?
How will the roots of \(4x^2-1=0\) be?
#quadratic equations
#zero b
#distinct roots
A दो वास्तविक और असमान / two real and distinct
B दो वास्तविक और समान / two real and equal
C वास्तविक मूल नहीं / no real roots
D दोनों मूल (1) / both roots are (1)
Explanation opens after your attempt
Correct Answer
A. दो वास्तविक और असमान / two real and distinct
Step 1
Concept
(D=02 -4(4)(-1)=16>0). Hence two distinct real roots will be obtained.
Step 2
Why this answer is correct
The correct answer is A. दो वास्तविक और असमान / two real and distinct. (D=02 -4(4)(-1)=16>0). Hence two distinct real roots will be obtained.
Step 3
Exam Tip
(D=02 -4(4)(-1)=16>0) है। इसलिए दो असमान वास्तविक मूल मिलेंगे।
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Question 6/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(x^2-9=0\) के मूलों की प्रकृति क्या है?
What is the nature of roots of \(x^2-9=0\)?
#quadratic equations
#numerical
#distinct roots
A दो वास्तविक और असमान / two real and distinct
B दो वास्तविक और समान / two real and equal
C वास्तविक मूल नहीं / no real roots
D दोनों मूल (0) / both roots are (0)
Explanation opens after your attempt
Correct Answer
A. दो वास्तविक और असमान / two real and distinct
Step 1
Concept
Here (D=02 -4(1)(-9)=36>0). So the roots are real and distinct.
Step 2
Why this answer is correct
The correct answer is A. दो वास्तविक और असमान / two real and distinct. Here (D=02 -4(1)(-9)=36>0). So the roots are real and distinct.
Step 3
Exam Tip
यहां (D=02 -4(1)(-9)=36>0) है। इसलिए मूल वास्तविक और असमान हैं।
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Question 7/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(2x^2+3x+\lambda=0\) के वास्तविक और असमान मूलों के लिए कौन सी शर्त सही है?
For \(2x^2+3x+\lambda=0\) to have real and distinct roots, which condition is correct?
#quadratic equations
#parameter
#distinct roots
#fraction
A \(\lambda<\frac{9}{8}\)
B \(\lambda=\frac{9}{8}\)
C \(\lambda>\frac{9}{8}\)
D \(\lambda=\frac{8}{9}\)
Explanation opens after your attempt
Correct Answer
A. \(\lambda<\frac{9}{8}\)
Step 1
Concept
(D=32 -4(2)\lambda=9-8\lambda). From (D>0), we get \(\lambda<\frac{9}{8}\).
Step 2
Why this answer is correct
The correct answer is A. \(\lambda<\frac{9}{8}\). (D=32 -4(2)\lambda=9-8\lambda). From (D>0), we get \(\lambda<\frac{9}{8}\).
Step 3
Exam Tip
(D=32 -4(2)\lambda=9-8\lambda) है। (D>0) से \(\lambda<\frac{9}{8}\) मिलता है।
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Question 8/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(x^2-2x+n=0\) के दो वास्तविक और असमान मूल होने के लिए कौन सी शर्त सही है?
For \(x^2-2x+n=0\) to have two real and distinct roots, which condition is correct?
#quadratic equations
#parameter
#distinct roots
#inequality
A (n<1)
B (n=1)
C (n>1)
D (n=2)
Explanation opens after your attempt
Step 1
Concept
For distinct real roots (D>0), so ((-2)2 -4n>0) gives (n<1). Use a strict inequality for distinct roots.
Step 2
Why this answer is correct
The correct answer is A. (n<1). For distinct real roots (D>0), so ((-2)2 -4n>0) gives (n<1). Use a strict inequality for distinct roots.
Step 3
Exam Tip
असमान वास्तविक मूलों के लिए (D>0), इसलिए ((-2)2 -4n>0) से (n<1)। असमान के लिए कड़ाई वाली असमता लगती है।
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Question 9/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
समीकरण \(2x^2+5x+2=0\) के लिए सही प्रकृति चुनिए।
Choose the correct nature for \(2x^2+5x+2=0\).
#quadratic equations
#numerical
#distinct roots
A दो वास्तविक और असमान / two real and distinct
B दो वास्तविक और समान / two real and equal
C वास्तविक मूल नहीं / no real roots
D दोनों मूल शून्य / both roots are zero
Explanation opens after your attempt
Correct Answer
A. दो वास्तविक और असमान / two real and distinct
Step 1
Concept
(D=52 -4(2)(2)=9>0). Hence the roots are real and distinct.
Step 2
Why this answer is correct
The correct answer is A. दो वास्तविक और असमान / two real and distinct. (D=52 -4(2)(2)=9>0). Hence the roots are real and distinct.
Step 3
Exam Tip
(D=52 -4(2)(2)=9>0) है। इसलिए मूल वास्तविक और असमान हैं।
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Question 10/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
यदि (D=25) हो तो द्विघात समीकरण के मूलों के बारे में सही बात क्या है?
If (D=25), which statement about the roots of a quadratic equation is correct?
#quadratic equations
#discriminant sign
#distinct roots
A मूल वास्तविक और असमान होंगे / roots will be real and distinct
B मूल वास्तविक और समान होंगे / roots will be real and equal
C वास्तविक मूल नहीं होंगे / roots will not be real
D मूल हमेशा शून्य होंगे / roots will always be zero
Explanation opens after your attempt
Correct Answer
A. मूल वास्तविक और असमान होंगे / roots will be real and distinct
Step 1
Concept
(25>0), so the roots will be real and distinct. The sign of (D) is enough for nature.
Step 2
Why this answer is correct
The correct answer is A. मूल वास्तविक और असमान होंगे / roots will be real and distinct. (25>0), so the roots will be real and distinct. The sign of (D) is enough for nature.
Step 3
Exam Tip
(25>0) है, इसलिए मूल वास्तविक और असमान होंगे। (D) का केवल चिन्ह प्रकृति बताने के लिए काफी है।
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Question 11/19
Easy Mathematics
Quadratic Equations Nature of Roots Class 10 Level 37
किस समीकरण के दो वास्तविक और असमान मूल होंगे?
Which equation will have two real and distinct roots?
#quadratic equations
#choose equation
#distinct roots
A \(x^2-7x+10=0\)
B \(x^2+2x+1=0\)
C \(x^2+4x+8=0\)
D \(4x^2+4x+1=0\)
Explanation opens after your attempt
Correct Answer
A. \(x^2-7x+10=0\)
Step 1
Concept
For the first equation, (D=(-7)2 -4(1)(10)=9>0). Hence its roots are real and distinct.
Step 2
Why this answer is correct
The correct answer is A. \(x^2-7x+10=0\). For the first equation, (D=(-7)2 -4(1)(10)=9>0). Hence its roots are real and distinct.
Step 3
Exam Tip
पहले समीकरण में (D=(-7)2 -4(1)(10)=9>0) है। इसलिए उसके मूल वास्तविक और असमान हैं।
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Question 12/19
Expert Mathematics
Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 36
यदि \(x^2-16x+n=0\) के दो अलग वास्तविक मूल हैं, तो (n) के लिए कौनसी शर्त सही है?
If \(x^2-16x+n=0\) has two distinct real roots, which condition on (n) is correct?
#quadratic
#discriminant
#distinct-roots
A (n<64)
B (n>64)
C (n=64)
D \(n\ge64\)
Explanation opens after your attempt
Step 1
Concept
For two distinct real roots, (D>0), so (256-4n>0) and (n<64). In exams, connect (D>0) with distinct real roots.
Step 2
Why this answer is correct
The correct answer is A. (n<64). For two distinct real roots, (D>0), so (256-4n>0) and (n<64). In exams, connect (D>0) with distinct real roots.
Step 3
Exam Tip
दो अलग वास्तविक मूलों के लिए (D>0), इसलिए (256-4n>0) और (n<64) है। परीक्षा में (D>0) को अलग वास्तविक मूल से जोड़ें।
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Question 13/19
Expert Mathematics
Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 35
यदि \(x^2-14x+n=0\) के दो अलग वास्तविक मूल हैं, तो (n) के लिए कौनसी शर्त सही है?
If \(x^2-14x+n=0\) has two distinct real roots, which condition on (n) is correct?
#quadratic
#discriminant
#distinct-roots
A (n<49)
B (n>49)
C (n=49)
D \(n\ge49\)
Explanation opens after your attempt
Step 1
Concept
For two distinct real roots, (D>0), so (196-4n>0) and (n<49). In exams, connect (D>0) with distinct real roots.
Step 2
Why this answer is correct
The correct answer is A. (n<49). For two distinct real roots, (D>0), so (196-4n>0) and (n<49). In exams, connect (D>0) with distinct real roots.
Step 3
Exam Tip
दो अलग वास्तविक मूलों के लिए (D>0), इसलिए (196-4n>0) और (n<49) है। परीक्षा में (D>0) को अलग वास्तविक मूल से जोड़ें।
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Question 14/19
Expert Mathematics
Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 34
यदि \(x^2-12x+n=0\) के दो अलग वास्तविक मूल हैं, तो (n) के लिए कौनसी शर्त सही है?
If \(x^2-12x+n=0\) has two distinct real roots, which condition on (n) is correct?
#quadratic
#discriminant
#distinct-roots
A (n<36)
B (n>36)
C (n=36)
D \(n\ge36\)
Explanation opens after your attempt
Step 1
Concept
For two distinct real roots, (D>0), so (144-4n>0) and (n<36). In exams, connect (D>0) with distinct real roots.
Step 2
Why this answer is correct
The correct answer is A. (n<36). For two distinct real roots, (D>0), so (144-4n>0) and (n<36). In exams, connect (D>0) with distinct real roots.
Step 3
Exam Tip
दो अलग वास्तविक मूलों के लिए (D>0), इसलिए (144-4n>0) और (n<36) है। परीक्षा में (D>0) को अलग वास्तविक मूल से जोड़ें।
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Question 15/19
Hard Mathematics
Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 36
यदि \(x^2-10x+n=0\) के दो अलग वास्तविक मूल हैं, तो (n) के लिए कौनसी शर्त सही है?
If \(x^2-10x+n=0\) has two distinct real roots, which condition on (n) is correct?
#quadratic
#discriminant
#distinct-roots
A (n<25)
B (n>25)
C (n=25)
D \(n\ge25\)
Explanation opens after your attempt
Step 1
Concept
For two distinct real roots, (D>0), so (100-4n>0) and (n<25). In exams, connect (D>0) with distinct real roots.
Step 2
Why this answer is correct
The correct answer is A. (n<25). For two distinct real roots, (D>0), so (100-4n>0) and (n<25). In exams, connect (D>0) with distinct real roots.
Step 3
Exam Tip
दो अलग वास्तविक मूलों के लिए (D>0), इसलिए (100-4n>0) और (n<25) है। परीक्षा में (D>0) को अलग वास्तविक मूल से जोड़ें।
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Question 16/19
Hard Mathematics
Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 35
यदि \(x^2-8x+n=0\) के दो अलग वास्तविक मूल हैं, तो (n) के लिए कौनसी शर्त सही है?
If \(x^2-8x+n=0\) has two distinct real roots, which condition on (n) is correct?
#quadratic
#discriminant
#distinct-roots
A (n<16)
B (n>16)
C (n=16)
D \(n\ge16\)
Explanation opens after your attempt
Step 1
Concept
For two distinct real roots, (D>0), so (64-4n>0) and (n<16). In exams, connect (D>0) with distinct real roots.
Step 2
Why this answer is correct
The correct answer is A. (n<16). For two distinct real roots, (D>0), so (64-4n>0) and (n<16). In exams, connect (D>0) with distinct real roots.
Step 3
Exam Tip
दो अलग वास्तविक मूलों के लिए (D>0), इसलिए (64-4n>0) और (n<16) है। परीक्षा में (D>0) को अलग वास्तविक मूल से जोड़ें।
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Question 17/19
Hard Mathematics
Quadratic Equations Methods of Solving Quadratic Equations Class 10 Level 34
यदि \(x^2-4x+n=0\) के दो अलग वास्तविक मूल हैं, तो (n) के लिए कौनसी शर्त सही है?
If \(x^2-4x+n=0\) has two distinct real roots, which condition on (n) is correct?
#quadratic
#discriminant
#distinct-roots
A (n<4)
B (n>4)
C (n=4)
D \(n\ge4\)
Explanation opens after your attempt
Step 1
Concept
For two distinct real roots, (D>0), so (16-4n>0) and (n<4). In exams, connect (D>0) with distinct roots.
Step 2
Why this answer is correct
The correct answer is A. (n<4). For two distinct real roots, (D>0), so (16-4n>0) and (n<4). In exams, connect (D>0) with distinct roots.
Step 3
Exam Tip
दो अलग वास्तविक मूलों के लिए (D>0), इसलिए (16-4n>0) और (n<4) है। परीक्षा में (D>0) को distinct roots से जोड़ें।
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Question 18/19
Hard Mathematics
Quadratic Equations Roots of a Quadratic Equation Class 10 Level 33
(x-2 -2(k+1)x+k-2 =0) की जड़ें वास्तविक और भिन्न हों, तो (k) पर सही शर्त क्या है?
For (x-2 -2(k+1)x+k-2 =0) to have real and distinct roots, what is the correct condition on (k)?
#quadratic-roots
#distinct-roots
#discriminant
A \(k>-\frac{1}{2}\)
B \(k\ge-\frac{1}{2}\)
C \(k<-\frac{1}{2}\)
D \(k\le-\frac{1}{2}\)
Explanation opens after your attempt
Correct Answer
A. \(k>-\frac{1}{2}\)
Step 1
Concept
For real and distinct roots, (D>0) is needed. Here (D=4(2k+1)), so \(k>-\frac{1}{2}\).
Step 2
Why this answer is correct
The correct answer is A. \(k>-\frac{1}{2}\). For real and distinct roots, (D>0) is needed. Here (D=4(2k+1)), so \(k>-\frac{1}{2}\).
Step 3
Exam Tip
वास्तविक और भिन्न जड़ों के लिए (D>0) चाहिए। यहाँ (D=4(2k+1)), इसलिए \(k>-\frac{1}{2}\)।
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Question 19/19
Easy Mathematics
Quadratic Equations Roots of a Quadratic Equation Class 10 Level 33
किस स्थिति में द्विघात समीकरण के दो भिन्न वास्तविक मूल होते हैं?
In which condition does a quadratic equation have two distinct real roots?
#roots
#discriminant
#distinct_roots
A (D=0)
B (D<0)
C (D>0)
D (a=0)
Explanation opens after your attempt
Step 1
Concept
For two distinct real roots, (D>0) is required. This is a direct rule to check the nature.
Step 2
Why this answer is correct
The correct answer is C. (D>0). For two distinct real roots, (D>0) is required. This is a direct rule to check the nature.
Step 3
Exam Tip
दो भिन्न वास्तविक मूलों के लिए (D>0) होना चाहिए। यह प्रकृति जांचने का सीधा नियम है।
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